Reversing-gear.



Patented Jan. 9, I900.

m. 64l,073. A. BROTT.

REVEBSING GEAR.

Application filed Sept. 29, 1899.)

(No Model.)

IN VE N TOR I T Jr W/ TNE SSE S A TTORNE Y8 m5 upnms PETERS 50.,PHOTG-LITHO..WASHINGTON4 11c TATES rte ANDREW BROTT, OF SOUTH DENVER,COLORADO;

REVERSING-GEAR.

srEoIFIeA'rron forming part of Letters Patent No. 641,073, dated January9, 1900. Application filed septemlier 29, 1899. Serial No. 732,042; (Nomodel.)

To all whom it may concern:

, Be it known that I, ANDREW BROTT,Of South Denver,- in the county ofArapahoe and State of Colorado, have invented a new and ImprovedRevcrsing-Gear, of which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improvedreversing-gear arranged to permit of conveniently and quickly reversinga shaft from a pulley continuously driven in one direction and which issimple and durable in construction, composed of comparatively few parts,and hence not liable to get out of order.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter, and then pointed outin the claims.

A practical embodiment of my invention is represented in theaccompanying drawings,

' forming a part of this specification, in which similar characters ofreference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation of the improvement on the line 11 of Fig. 2. Fig. 2 is a transverse section of the same on the line 2 2in Fig. 1. Fig. 3 is a sectional side elevation of a modified form ofthe improvement arranged with friction-wheels, the section being on theline 3 3 of Fig. 4. Fig. 4 is a transverse section of the same on theline A 4 in Fig. 3; and Fig. 5 is an enlarged plan view, with part insection, of the band-brake.

The improved reversing-gear illustrated in Figs. 1 and 2 is applied to ashaft A to be driven in a forward or a reverse direction, and on saidshaft A is mounted loosely a wheel or other support B, in which isradially journaled one or a plurality of bevel-pinions O, in mesh on oneside with a bevel gear-wheel D, secured to or formed on a pulley D,connected by a belt E with other machinery for imparting a continuousrotary motion to the said pulley and the bevel gear Wheel D in onedirection. The bevel gear-wheel D is mounted to rotate loosely on theshaftA and is adapted to be coupled thereto by a clutch F, the pivotedmembers of which are adapted to be swung in frictional contact with thehub of the wheel D by a cone G, fitted to slide loosely on the shaft Aand carried by a bar G, to which are secured shifting-arms Gr under thecontrol of the operator. On the arms G is also held an arm G carrying acone G for throwing the pivoted members of a clutch F in contact withthe hub of a second. gearwheel H, likewise mounted to rotate loosely onthe shaft A and in mesh with the pinion O on the side opposite to thatin mesh with the gear-wheel D. The wheel or support B is adapted to belocked against rotation bya' band-brake having a brake-band I engaging apart of the rim of the wheel and secured at its upper end to a bracket Jand at its lower end to a screw-rod K, held on an arm K, pivoted to thebracket J. (See Figs. 1, 2, and 5.) The arm K is provided on its freeend with alng K adapted to be engaged by an inclined or beveled shoulderG 011 the lower arm G so that when this arm is moved to the left theshoulder G imparts a swinging motion to the arm K to draw the band Itight on the rim of the wheel B, thus braking the latter at the time thecone G is out of mesh with the clutch F, and the other cone G actuatesthe clutch F to lock the wheel H to the shaft A by the said clutch F.When the shifting-arms G are moved in the direction of the arrow 0t,then the shoulder G is moved from the lug K and the brake-band I isreleased and the cone G 'moves out of engagement with the clutch F todisconnect the wheel H from the shaft A, and at the same time the cone Gis moved in engagement with the clutch F, so as to lock the gear-wheel Dand its pulley D to the shaft A. Now when the several parts are in thisposition then the rotary motion of the pulley D' and gearwheel D istransmitted direct by the clutch F to the shaft A to rotate the latterin a forward direction, and as the wheel H is now disconnected from theshaft A it is evident that the pinion (J and the said wheel H rotateloosely without transmitting motion or influencing the shaft A in anyWay whatever. When, however, the operator moves the arms G in theinverse direction of the arrow a to the position shown in Figs. 1 and 2,then the support Bis held against rotation and the wheel D is free torotate loosely on the shaft A, while the wheel H is locked to the shaft.The rotating motion given to the pulley D is transmitted by thegear-wheel D to the pinion O, and the latter now rotates the gearwheelH, and with it the shaft A, but in a reverse direction from thatpreviously given to the said shaft A, as above described.

In the arrangement shown in Figs. 3 and 4 the wheels D and H are infrictional contact with opposite sides of the friction-pinions 0, havingtheir shafts 0 free to slide radially in bearings in the support B inthe form of a bracket fixed to a wall or the like. wheel H is secured bya set-screw H to the shaft A, while the wheel D isprovided with a pulleyD and is adapted to be locked to the shaft A by a clutch F opened orclosed by the cone G held on the bar G attached to the sliding arms GThe latter are provided with shoulders or inclines G adapted to engageslots in the outer ends of the support B to lock the shafts C in aninnermost position and hold the pinions O in frictional contact withboth wheels H and D at the time the wheel D rotates loosely on the shaftA by being disconnected from the same by the clutch F (See Fig. 3.)When, however, the arms G are moved to the right in the direction of thearrow 1), then the shoulders or inclines G move out of engagement withthe shafts (J for the pinions O to allow the latter to slide outwardwith their shafts and move out of frictional engagement with the wheelsH and D When this takes place, the cone G6 actuates the clutch F so asto lock the wheel D to the shaft A, and consequently the rotating motionof the wheel D is transmitted by the shaft A in a forward direction.When the several parts are, however, in the position shown in Fig. 3,then the rotation of the wheel D causes a revolving of the pinion O andthe wheel H to rotate the shaft A in a reverse direction.

The device is very simple and durable in construction, is not liable toget out of order, and is positive in its operation.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. A reversing-gear, comprising twobevelwheels arranged for connection with the shaft to be driven in aforward or backward direction, one of the wheels being driven, asupporting-wheel loose on the shaft and carrying a bevel-pinion formeshing with both wheels on opposite sides of the pinion, a clutchadapted to connect the driven wheel with the shaft, a brake adapted toengage the said support to lock the same, said brake being provided withan actuating-arm, a cone adapted to actuate said clutch, and ashifting-arm for said cone, said arm having a shoulder engaging andmoving the actuating-arm for the brake The when the cone is shifted inone direction as set forth.

2. In a reversing-gear, the combination with a shaft, two bevel-wheelsboth loosely mounted on said shaft, a support loose on said shaft andcarrying a pinion meshing with said wheels, clutches on opposite sidesof said wheels, cones slidable on said shafts and adapted to actuatesaid clutches, and shift ing-arms connected together and connected withsaid cones, whereby one clutch will be coupled to the adjacent Wheel andthe other uncoupled from its adjacent wheel at the same time, as setforth. v

3. In a reversing-gear,tl1e combination with a shaft to be driven, asupport normally loose on the shaft and carrying-a radially-disposedbevel-pinion, and bevel gear-wheels mounted to rotate loosely on theshaft and in mesh with opposite sides of said pinion, one of the gearwheels being driven, of connected clutches on the shaft and adapted toengage said gearwheels, clutch-actuating means under the control of theoperator for throwing one clutch into engagement with its wheel and theother out of engagement with its wheel, and abrake mechanism controlledby the said clutch-ac tuating means and engaging the said support forthe bevel-pinion, substantially as shown and described.

4. In a reversing-gear, the combination with a shaft to be driven, asupport held on the shaft and carryingaradially-disposed bevelpinion,and bevel gear-wheels mounted to rotate loosely on the shaft and in meshwith opposite sides of said pinion, one of the gearwheels being driven,of clutches connected to move together on the shaft, and adapted toengage said gear-wheels, and clutch-actuat ing means under the controlof the operator for throwing one clutch into engagement with its wheeland the other out of engagement with its wheel, substantially as shownand described.

5. A reversing-gear, comprising a shaft to be driven, a support held onthe shaft and carrying a radially-disposed bevel-pinion, bevelgear-wheels mounted to rotate loosely on the shaft and in mesh withopposite side of said pinion, one of the gear-wheels being driven,connected clutches on the shaft, and adapted to engage said gear-wheels,clutch= actuating means under the control of the operator, for throwingone clutch into engagement with its wheel and the other out ofengagement with its wheel, a device for braking said pinion-support, anda connection between said braking device and said clutchactuating meanswhereby the latter serves to hold the support against rotation when inone 7 position, as set forth.

6. A reversing-gear, comprising two bevelwheels, on the shaft to bedriven in a forward or backward direction, one of the wheels beingdriven, a support on said shaft, said sup- IIG port carrying abevel-pinion for meshing With driven wheel to the shaft whereby saidclutch both Wheels on opposite sides of the pinion, is thrown out ofaction when the two bevel- 10 means for holding said support rigid, aclutch wheels are thrown into gear, as set forth. adapted to connect thedriven Wheel with the shaft, shifting-arms arranged to throw said ANDREWBROTT driven Wheel into gear with the other bevel- Witnesses: wheel, anda connection between said shift- R. D. REES, ing-arms and the clutch forcoupling the A. BERGER.

